This 250F M/R safety rollout switch acts as a primary line of defense

This Parker-Watts B548 series unit features an aluminum body and a polyurethane bowl

Optimized Airflow: Engineered for two-stage heating systems to provide precise CFM delivery during low and high fire modes

Does this controller require a separate ignition module

this assembly is designed to handle chilled water

Tekmar Controls 132 Control 318172-701 This 250F M/R safety rolloutThe Tekmar Controls 132 is a dedicated 120Vac Pump Sequencer Control engineered to manage two pumps in a lead lag configuration to ensure equalized runtimes and system redundancy. For hydronic contractors managing secondary loops or boiler feed systems, the Tekmar 132 provides essential pump rotation logic based on a field adjustable schedule. This HVAC pump controller features an internal timer that triggers automatic pump sequencing every 48 hours